Appetite hormone might impact Alzheimer's onset

December 15, 2009 Researchers at Boston University say they have research showing that people with higher levels of leptin were less likely to develop Alzheimer's disease. Those people also had more brain volume in the hippocampus, a key memory center of the brain.

Researchers say studies in mice suggest leptin plays a role in cognitive function and that it may play an even broader role in the body than just regulating appetite.

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